<0.5 Ω CMOS, 1.65 V to 3.6 V,
Quad SPST Switches
ADG811/ADG812/ADG813
FUNCTIONAL BLOCK DIAGRAMS
FEATURES
0.5 Ω typical on resistance
S1
S1
S1
IN1
IN2
IN3
IN4
IN1
IN2
IN3
IN4
0.8 Ω maximum on resistance at 125°C
1.65 V to 3.6 V operation
Automotive temperature range: −40°C to +125°C
High current carrying capability: 300 mA continuous
Rail-to-rail switching operation
IN1
IN2
IN3
IN4
D1
S2
D1
S2
D1
S2
D2
S3
D2
S3
D2
S3
ADG811
ADG812
ADG813
Fast switching times: <25 ns
Typical power consumption <0.1 μW
D3
S4
D3
S4
D3
S4
APPLICATIONS
D4
D4
Cellular phones
D4
MP3 players
Power routing
SWITCHES SHOWN FOR A LOGIC 1 INPUT
Figure 1.
Battery-powered systems
PCMCIA cards
Modems
Audio and video signal routing
Communications systems
GENERAL DESCRIPTION
PRODUCT HIGHLIGHTS
The ADG811/ADG812/ADG813 are low voltage CMOS devices
containing four independently selectable switches. These switches
offer ultralow on resistance of less than 0.8 Ω over the full
temperature range. The digital inputs can handle 1.8 V logic
with a 2.7 V to 3.6 V supply.
1. <0.8 Ω over full temperature range of −40°C to +125°C.
2. Single 1.65 V to 3.6 V operation.
3. Operational with 1.8 V CMOS logic.
4. High current handling capability (300 mA continuous
current at 3.3 V).
5. Low THD + N (0.02% typical).
6. Small 3 mm × 3 mm LFCSP package and 16-lead TSSOP
package.
These devices contain four independent single-pole/single-
throw (SPST) switches. The ADG811 and ADG812 differ only
in that the digital control logic is inverted. The ADG811
switches are turned on with a logic low on the appropriate
control input, while a logic high is required to turn on the
switches of the ADG812. The ADG813 contains two switches
whose digital control logic is similar to the ADG811, while the
logic is inverted on the other two switches.
Each switch conducts equally well in both directions when on
and has an input signal range that extends to the supplies. The
ADG813 exhibits break-before-make switching action.
The ADG811/ADG812/ADG813 are fully specified for 3.3 V,
2.5 V, and 1.8 V supply operation. The ADG811 is available in a
16-lead TSSOP package and a 16-lead LFCSP package, and the
ADG812/ADG813 are available in a 16-lead TSSOP package.
Rev. B
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